FR2867762A1 - Compact disk positioning and maintaining device, has positioning and maintaining units formed from foldable rigid material blank, such that units are forced by their outer and inner transversal sides towards their closer position - Google Patents

Abstract

The device has positioning and maintaining units (4, 5) arranged on a base unit so that the units occupy a closer position and an elongated position to install or withdraw a compact disk in a space between the units (4, 5). The units (4, 5) are formed from a foldable rigid material blank in a deformable parallelogram shape, such that the units (4, 5) are forced by their outer and inner transversal sides towards their closer position. Independent claims are also included for the following: (A) a blank made of foldable rigid material such as cardboard or polymer, for the formation of a device for positioning and maintaining an object (B) an assembly formed by a positioning and maintaining device in which a compact disk is positioned.

Description

The invention relates to a device for positioning and maintaining the

  least one object having at least two opposite thin edges, in particular a compact disc. The invention also relates to a blank made of foldable rigid material such as cardboard or polymer for forming by volume,

  folding and gluing of such a device as well as the assembly formed by such a device wherein at least one object is positioned and maintained.

  Disclosed are devices for positioning and maintaining a compact disc comprising a base element of generally planar shape supporting a pair of positioning and holding elements. The elements are placed opposite and spaced from each other along a direction of the plane defined by the base element so that the object can be arranged in the space between the elements. Each of the positioning and holding elements has first and second means between which the edge of the object can be inserted so as to position and maintain it.

  In particular, the document WO 97/38920 describes a device comprising two plates between which lateral elements are fixed. Grooves are formed in the side members to allow insertion of the disc between the trays and between the side members. To maintain the disk, the gap between the lower portion of the groove and the upper plate and the gap between the bottom of the grooves are respectively less than the thickness and diameter of the disk.

  Thus, in such a device, the disk is held by pinching between the lower portion of the grooves and the upper plate and by close contact of its edges with the bottom of the grooves.

  However, to insert the disc, it is necessary to force the edges of the grooves with the edge of the disc. As a result, from the first insertion, the dimensions of the grooves are modified. In use, the disc is not always inserted in the same way, the gap between the bottom of the grooves and the gap between the lower part of the groove and the upper plate grow and widened grooves no longer ensure close contact and / or pinching. The disk can then slide from the device when one grasps the device or when it is carried in a bag, for example. Thus, such a device can not sustainably maintain the disk between the grooves.

  In addition, the device is obtained by assembling two lateral elements between two plates. This results in a risk of the elements and / or trays separating when the edges of the disc are inserted into the grooves.

  Moreover, especially during the first insertion, because of the force exerted on the disc to insert it and the resistance opposed by the edges of the grooves, the disc may bend or deform and therefore be damaged.

  On the other hand, the edges of the grooves through which the disc is introduced suffer rapid wear which renders the device rapidly unsightly.

  The aim of the invention is to overcome these drawbacks by proposing a device in which the positioning and holding elements can be elastically deformed to allow the introduction and removal of an object having at least two opposite thin edges and in particular a compact disc. .

  For this purpose, according to a first aspect, the invention relates to a device for positioning and holding at least one object having at least two opposite thin edges, in particular a compact disc, said device comprising at least one basic element of shape. plane supporting a pair of positioning and holding elements, said elements being placed opposite and spaced from each other along a direction X of the plane defined by the base element, the object being able to be arranged in the space between the elements, each of the positioning and holding elements having first and second means between which the edge of the object can be inserted so as to position and maintain it, wherein at least one one of the positioning and holding elements is arranged on the base element so as to be able to occupy two relative positions 2867762 3 relative to a close position of rest and a position which allows the placing of the object in the space between the elements or its withdrawal, and an intermediate position when the object is positioned and maintained between the first and the second means, the element being solicited by elastic means to its close position.

  The device according to the invention has the advantage of setting up a simple and rapid withdrawal during which the means of the positioning and holding elements do not undergo, on the part of the edges of the disc, any stress likely to damage them. Indeed, during the introduction / removal of the object, the elements, and therefore the first and second means, are first removed and then placed in position so as to position and maintain the disk.

  In a particular embodiment, the first and second means are spaced from each other with respect to a direction Z orthogonal to the plane defined by the basic element and are respectively located in a first and second second locations of share and other of the first location, along a direction Y orthogonal to X and z, said first and second means of each element being arranged to come close to the edge of the object, on both sides so as to housing it when the positioning elements are biased towards their close position.

  In such an embodiment, the edges of the object are housed, which ensures a positioning and a more effective and secure hold in all directions. On the other hand, the spaces that can exist between the edges of the object and the first and second means facilitate the introduction and removal of the disk without deterioration of the disk or wear of the first and second means. This embodiment also simplifies the manufacture of the device by introducing less stringent tolerances to form the first and second means that come close and not necessarily against the edges of the object.

  The device according to the invention also has the advantage of being able to be produced in one piece.

  For this purpose, according to a second aspect, the subject of the invention is a blank made of foldable rigid material such as cardboard or polymer intended for forming by volume-setting, folding and gluing of a device according to the first aspect, said blank comprising at least one generally polygonal central panel for forming a base member of the device and two sets of side panels for forming the positioning and holding members, each assembly having a first side panel adjacent to the central panel and hinged to the latter by means of a first fold line orthogonal to the X direction, a second lateral panel attached to the first and articulated thereto via a second folding line parallel to the first, a third side panel adjacent to the second and articulated thereto via a third folding line parallel to the second and a leg fastening adjacent the third side panel and articulated thereto via a fourth folding line parallel to the third, the distance between the first and second fold lines being substantially equal to the distance between the third and the fourth lines.

  According to a third aspect, the invention relates to an assembly formed by the device according to the first aspect in which at least one object is positioned and maintained in the space between the positioning and holding elements.

  Other objects and advantages of the invention will become apparent from the following description, made with reference to the accompanying drawings, in which: FIG. 1 is a top view of a first embodiment of a device according to FIG. invention for positioning and maintaining a compact disc, the compact disc being held between the positioning and holding elements placed in the intermediate position; FIG. 2 is a view similar to that of FIG. 1 in which a positioning and holding element is in a close position, the other element being in the remote position so as to allow the compact disk to be put in place / removed in the space formed between the elements; FIG. 3 is a partial view from above of the device of FIGS. 1 and 2 in which a positioning and holding element is represented in the close rest position; Figure 4 is a cross-sectional view of the device of Figures 1 and 2 in which a positioning and holding member is shown, a compact disc being housed between the first and second means of the element; FIG. 5 is a perspective view of a second embodiment of the device according to the invention in which the device forms a box intended for the positioning and maintenance of three compact disks, in which three basic elements each support a pair. positioning and holding elements, the basic elements being articulated to each other and foldable on each other, the device comprising opening / closing means and removable fixing means; FIG. 6 is a representation of the blank intended for formation by placing in volume, folding and gluing the device of FIG.

  FIGS. 1 to 4 show a first embodiment of a device 1 for positioning and holding an object having at least two opposite thin edges, such as a compact disk 2. The device 1 comprises an element of FIG. base 3 formed by a panel of generally polygonal shape supporting a pair of elements 4, 5 for positioning and holding disposed opposite and spaced apart from each other along a direction X of the basic plane defined by the element 3. The compact disc 2 is disposed in the space between the elements 4, 5.

  Each of the positioning and holding elements 4, 5 comprises first and second means 7 between which the edge of the disc 2 can be inserted so as to position and maintain it.

  From the base plane and the X direction, we define a direction Y belonging to the base plane and orthogonal to x and a direction Z orthogonal to the base plane.

  Furthermore, in the remainder of the description, the lateral and transverse terms are defined with respect to planes respectively comprising the X and Z directions and the Y and Z directions. The terms inside and outside are defined with respect to lateral planes. or transversely located respectively close to and away from the space between the positioning and holding elements 4, 5. And, the lower and upper terms refer to planes parallel to the base plane and respectively located near and away from the base member 3.

  In a particular embodiment, the device 1 is made by folding a blank 25 of foldable rigid material such as cardboard or polymer, in particular polypropylene, polyester, high-density polystyrene.

  The device according to the invention therefore allows the use of an inexpensive material that can be shaped easily. In addition, by producing the device by folding a single piece of a material such as cardboard or polymer, there is obtained a device having a satisfactory rigidity while allowing reversible deformations.

  The base element 3 is formed by a central panel 26 of generally rectangular shape. Each element 4, 5 for positioning and holding is formed by a deformable parallelogram defined by first 27, second 29 and third 31 adjacent side panels intended to form respectively the outer transverse 8, upper 9 and inner transverse transverse faces 10 of the parallelogram, and by a fastening lug 11 folded and secured to the base member 3. The side panels 27, 29 and 31 and the fixing lug 11 are arranged so that the upper face 9 of each element 4, 5 of positioning and holding member is connected to the base member 3 by the outer transverse 8 and inner 10 faces, the upper face 9 being disposed substantially parallel and at a distance from the base member 3.

  In the embodiment shown, the positioning and holding elements 4, 5 are of the same dimensions so that the compact disc 2 is centered with respect to the base member 3 in the X direction. the elements 4, 5 may have different dimensions, the compact disc 2 being then shifted in the direction X towards one or other of the edges of the base element 3.

  Due to the materials used and the folding, the deformable parallelograms have a certain elasticity and a shape memory and the positioning and holding elements 4, 5 are displaceable, that is to say they can occupy on the basic element 3 two extreme relative positions: a close position of rest and a distant position. In the close rest position, shown in FIG. 3, the outer transverse 8 and inner 10 faces of the elements 4, 5 are substantially orthogonal to the base element 3 and the upper face 9 is substantially parallel to the base element 3 In the remote position, the elements 4, 5 are spaced in the X direction outwards by external stress exerted for example by the finger of a user, the upper face 9 being moved substantially parallel to the base member for allow the introduction of the disk 2 in the space between the elements 4, 5 or its withdrawal from said space.

  In another embodiment, in order to amplify or facilitate the movement of the elements 4, 5 with respect to the base member 3, it is possible for the lower edges 16 of the inner transverse faces 10 to be more or less close together. one of the other, the inner transverse faces 10 then being inclined relative to a plane orthogonal to the base plane. In particular, if the outer transverse 8 and inner 10 faces of the elements 4, 5 are of the same dimensions, the upper face 9 has a slight inclination towards the inside of the base member 3, which facilitates the entry of the element 4, 5 for its displacement.

  In relation to FIGS. 1 and 2, the introduction of a disk 2 in the device 1 of the invention is described. We choose to describe this implementation by moving one 4 of the elements 4, 5 of positioning and maintenance, the other 5 occupying its close position of rest to form a stop. However, it is possible to move either one of the elements 4, 5 of positioning and holding or both.

  The disc is inserted by the user in between the first and second means of the element 5 and the element 4 is placed in the remote position (Figure 2). When the external stress on the element 4 is released, the outer transverse faces 8 and inner 10 forming resilient means urge the movable member 4 towards its close position so as to position the first 6 and second 7 means of the element 4 at the edges of the disk 2.

  The positioning and holding elements 4, 5 are arranged to have an intermediate position when the object is positioned and maintained between the first 6 and second 7 means. This intermediate position, shown in Figure 1, is located between the close position of rest and the remote position and ensures effective maintenance of the disk 2 by the first 6 and second 7 means due to the action of the elastic means.

  In the same way, to remove the disk 2, the element 4 is placed in a remote position and the user grasps the disk 2 to disengage it from the first 6 and 30 seconds 7 means of the element 5.

  In the embodiment shown in particular in FIG. 4, to obtain the positioning and retention of the disk 2, each element 4, 5 has an opening 12 on its inner transverse face 10. In the figures, the openings are centered on the face As a variant, the openings 12 may be made opposite one another and offset in the Y direction. The opening 12 is delimited by two orthogonal cuts spaced apart from each other. the other on the inner transverse face 10. Each of the cuts comprises a first portion 13 which extends substantially in the direction Z from the inner edge 14 of the upper face 9 of the element 4, 5 and a second portion io adjoining the first 13 and inclined towards the base member 3 forming a ramp 15 may be straight or rounded and oriented towards the inside of the opening 12. The opening 12 is, moreover, limited by a cut between the two orthogonal cuts along the inner edge 14 of the upper face 9 and the lower edge 16 of the inner transverse face 10. The edges of the disc 2 can then be inserted into the opening 12 so as to be housed between the upper face 9 forming the first means 6 on the one hand and the first portions 13 and the ramps 15 forming the second means 7 on the other hand.

  The dimensions in particular in the X and Y directions of the elements 4, 5 and the spacing between the orthogonal cuts of the openings 12 are adjusted to accommodate a larger or smaller portion of the edges of the compact disc 2 according to the desired maintenance.

  Furthermore, the opening 12, the dimensions of the faces of the elements 4, 5 and / or their position on the base element are arranged so that in the at least position at least the upper face 9 and the first portions 13 are spaced apart. a distance greater than the diameter of the disc 2. It can then be provided that, when the positioning elements 4 and 5 are in the remote position, the disc 2 can rest on the ramps 15. When the external stresses on each element are released, the edges of the disc 2 can thus slide on the ramps 15 so as to be positioned and maintained by the upper face 9, the first portions 13 and the ramps 15 placed near or against the edge.

  The use of the ramps 15 also makes it possible to adapt the device to possible dimensional variations of the disc 2 inserted between the first 6 and second 7 means. They also make it possible to suspend the disk 2 above the base element 3. The space thus created between the disk 2 and the base element 3 prevents deterioration of the disk, in particular of the recorded face, by contact and friction with the base element 3. The space also facilitates the gripping of the disc 2.

  In a general manner, the first 6 and second 7 means thus formed make it possible to wedge the disc 2 in all directions by substantially linear contacts, thus limiting the risk of deterioration by friction.

  In order to facilitate the installation of the disc 2 by limiting the gap necessary to reach the position remote from the elements 4, 5, the upper face 9 may have an opening 17 delimited by the cut along the inner edge 14 between the two orthogonal cuts and a cutout 18 along a line substantially corresponding to the shape of the edge of the disc 2. The cutout 18 may also be made so that the upper face 9 has a lug centered with respect to the two orthogonal cutouts and under which the edge of the disc 2 is placed. In variant not shown, the lug can be made near one or the other cutouts. Moreover, several lugs may be provided on the blank 18, evenly distributed or not. For example, it can be provided that the device 1 comprises four lugs, two on one of the elements 4, 5 for positioning and holding and two on the other of the elements 4, 5. However, the number of lugs can be different between the two elements 4, 5.

  Such an embodiment also makes it possible to facilitate the removal of the disc 2. Indeed, when one of the elements 4, 5 is placed in the remote position, a pressure exerted on the upper surface 9 of the other element 4, 5 allows, by a lever movement made between the lug or pins 15, to raise the free edge of the disk 2 to facilitate grasping.

  The description has just been made for a device comprising two movable elements. However, it can be provided that only one of the two elements 4, 5 is movable, the other element forming a stop.

  In order to ensure the protection of the disk 2, the device 1 may comprise a second base element 3 adjacent and articulated to the first so as to be folded over the elements 4, 5 of the first base element 3. The second basic element 3 thus forms a cover element.

  To allow the cover member to cover the elements 4, 5 of the first base member 3, an intermediate element of generally flat and rectangular shape is disposed between the first base member 3 and the cover member. The intermediate element is adjoining and articulated to the two basic elements 3 along fold lines parallel to the direction X. The dimension of the intermediate element in the Y direction is substantially equal to the dimension of the positioning elements 4, 5 and 5. The cover member may then have means for releasably securing a thin article such as a booklet, a leaflet or a print.

  The removable fastening means are, for example, formed flaps hinged to the edges of the cover member and secured thereto so as to have an inlet / outlet opening and a housing for maintaining the article .

  In such a device, reversible opening / closing means can also be provided on the base elements 3 to maintain the cover element in position on the positioning and holding elements 4, 5.

  In a second embodiment, the device 1 forms a box for the positioning and maintenance of several compact discs 2. In particular, there may be provided boxes containing from two to seven discs 2 or more.

  The cabinet according to the second embodiment comprises a plurality of base elements 3 adjacent in the Y direction and articulated to each other so that they can be folded over each other. The number of basic elements 3 is equal to the number of disks to be positioned and maintained, each base element 3 of the housing supporting a pair of positioning element 4, 5 and holding.

  In order to allow the stacking of the base elements 3, intermediate elements 19 of generally rectangular and plane shape are arranged between two consecutive base elements 3. The intermediate elements 19 are adjacent to the base elements 3 and articulated thereto along fold lines 20 parallel to the direction X. The dimension of each intermediate element 19 in the direction Y is adapted to the superposition of the elements 4, 5 of positioning and holding in the direction Z. According to one embodiment of the box, a first and a second base elements 3 of the box are provided with opening / closing means for maintaining the base elements 3 folded over each other. In addition, at least one base member 3 may comprise means for removably attaching a thin article such as a booklet, a leaflet or a printed document, the fixing means comprising an insertion / exit opening and a housing allowing the maintenance of the article.

  In a particular example, the covering element covering the elements 4, 5 for positioning and holding a first base element 3 can also carry a pair of elements 4, 5 to form a box of two disks 2. dimension in the direction Y of the intermediate element is then substantially equal to twice the dimension in the Z direction of the elements 4, 5 of positioning and maintenance.

  With reference to FIG. 5, a box for positioning and holding three compact disks 2 is described.

  The cabinet comprises a first 3a, a second 3b and a third 3c base elements each supporting a pair of positioning and holding elements 4, 5, a first 19a and a second intermediate element 19b being respectively arranged between the first 3a and the second 3b basic elements and between the second 3b and the third basic element 3c. The device is arranged so that the third base element 3c can be folded over the second 3b, the stack formed by the third 3c and second 3b basic elements can itself be folded on the first 3a so that the third element Basic 3c rests on the first 3a. To do this, the dimensions in the Y direction of the first 19a and second 19b intermediate elements are substantially equal to three times and twice the dimension in the Z direction of the positioning and holding elements 4, 5.

  When the base members 3a, 3b and 3c are stacked, the upper face 9 of each element 4, 5 under which the disc 2 is inserted prevents contact of the disc 2 with a stacked base element 3 or another disc 2.

  The first base member 3a is provided with a tongue 21 that can be inserted into a slot 22 provided on the second base member 3b. Alternatively, the tongue 21 may comprise an adhesive face intended to be reversibly secured to the second base member 3b. In other embodiments, the tongue 21 and the second base member 3b may be provided with a reversible fastener of Velcro type, pressure or otherwise.

  Furthermore, a flap is associated with the third base member 3c so as to form a housing 24 for maintaining a brochure, a leaflet or a printed form. An introduction / outlet opening 23 is provided on the third base member 3c.

  With reference to FIG. 6, the blank 25 for forming by volume, folding and gluing of the device 1 is now described.

  The blank 25 comprises the central panel 26 of generally rectangular shape and intended to form a base member 3 of the device 1. The blank 25 also comprises two lateral assemblies intended to form the elements 4, 5 for positioning and holding.

  Each set includes the first side panel 27 adjoining the central panel 26 and articulated thereto via a first fold line 28 orthogonal to the X direction, the second side panel 29 adjoining the first 27 and hinged to the latter through a second fold line 30 parallel to the first 28, the third side panel 31 adjoining the second 29 and hinged thereto via a third fold line 32 parallel to the second 30 and the bracket 11 adjacent the third side panel 31 and articulated thereto via a fourth fold line 33 parallel to the third 32. The distance between the first 28 and second 30 fold lines is substantially equal to the distance between the third 32 and the fourth 33 lines so that, following the shaping of the blank 25, the elements 4, 5 of positioning and maintenance present leu r upper face 9 substantially parallel to the base member 3.

  The opening 12 made on each third side panel 31. The opening 12 is then delimited by the two orthogonal cuts spaced apart from each other and each comprising the first portion 13, extending from the third fold line 32 substantially orthogonally thereto, and the second portion, adjacent to the first 13 and inclined towards the fourth fold line 33 forming the ramp 15 facing the interior of the opening 12. The opening is, moreover, delimited by a cutout between the two orthogonal cuts along the third 32 and fourth 33 fold lines.

  In a particular embodiment, the blank has the opening 17 made on each second side panel 29. The opening 17 is delimited by the cutout between the two orthogonal cuts along the third fold line 32 and by the cutout 18. along a line substantially corresponding to the shape of the disc 2 to position and maintain.

  FIG. 6 more particularly represents a blank 25 enabling the device according to FIG. 5 to be produced. The blank thus comprises three central panels 26 arranged successively in the Y direction and two intermediate panels 34 placed between two consecutive central panels 26. The intermediate panels 34 are adjacent to the central panels and articulated thereto along fold lines 20 parallel to the X direction. Each central panel 26 comprises two lateral assemblies for forming the positioning and holding elements 4, 5.

  As shown, the first central panel 26a comprises an opening / closing panel 35 hinged to said central panel 26a along a fold line 20 parallel to the X direction, a fastening lug 36 provided with a tongue 21 being attached and hinged at the opening / closing panel 35 along a fold line 20 parallel to the direction X. The tongue 21 is intended to be inserted into the slot 22 provided on the second panel 26b.

  Furthermore, a cons-panel 37 substantially of the same dimensions adjacent to the third central panel 26c is hinged thereto along a fold line 20 parallel to the direction X. When forming the blank 25, the counter-panel 37 is folded on the face opposite to the face supporting the elements 4, 5 for positioning and holding and secured to form the housing 23. It can be provided that the against-panel 37 is secured to the central panel 26c by its three free edges and an introduction / exit opening 23 in the form of a slot is made on the central panel 26 to allow the attachment of an article such as a brochure, a leaflet or a printed form in the housing 24.

Claims (18)

  1. Device (1) for positioning and holding at least one object (2) having at least two opposite thin edges, in particular a compact disc, said device comprising at least one basic element (3) of generally planar shape supporting a pair of positioning and holding elements (4, 5), said elements being placed opposite and spaced from each other along a direction X of the plane defined by the base element (3) , the object being able to be arranged in the space between the elements (4, 5), each of the positioning and holding elements (4, 5) comprising first (6) and second (7) means between which the edge of the object (2) can be inserted so as to position and maintain it, said device being characterized in that at least one of the positioning and holding elements (4, 5) is arranged on the element base (3) so as to occupy two relative extreme positions, a close position resting position and a remote position which allows the positioning of the object (2) in the space between the elements (4, 5) or its withdrawal, as well as an intermediate position when the object (2) is positioned and held between the first (6) and the second (7) means, the element (4, 5) being biased by elastic means (8, 10) towards its close position.   2. Device (1) according to claim 1, characterized in that the two elements (4, 5) for positioning and holding are arranged on the base member (3) so as to occupy the two extreme positions and relative the intermediate position, the two elements (4, 5) being biased by elastic means (8, 10) towards their close position.   3. Device according to claim 1 or 2, characterized in that the first (6) and second (7) means are spaced from each other with respect to a direction Z orthogonal to the plane defined by the base member (3) and are respectively located in first and second locations on either side of the first location, along a Y direction orthogonal to x and z, said first and second means of each element (4, 5) being arranged to come close to the edge of the object (2), on either side so as to accommodate it when the positioning elements (4, 5) are biased towards their close position.   4. Device (1) according to any one of claims 1 to 3, characterized in that it is made by folding a blank (25) of foldable rigid material such as cardboard or polymer, each basic element (3). ) being formed by a central panel (26) of generally polygonal shape, each positioning and holding element (4, 5) being formed by a deformable parallelogram defined by first (27), second (29) and third (31) ) side panels, intended to form respectively the outer (8), upper (9) and inner transverse (10) transverse faces of the parallelogram, and by a fastening lug (11) folded and secured to the base member (3) the first side panel (27) being adjacent to and hinged to the central panel (26) via a first fold line (28) orthogonal to the X direction, the second side panel (29) being adjacent to the first (27) and articulated to it pa via a second folding line (30) parallel to the first (28), the third side panel (31) being adjacent to the second (29) and articulated thereto via a third folding line (32) parallel to the second (30) and the fixing lug (11) being adjacent to the third lateral panel (31) and hinged thereto by means of a fourth fold line (33) parallel to the third (32), so that the upper face (9) of the element (4, 5) is connected to the base element (3) by the inner (10) and outer (8) transverse faces (8) said upper face being disposed substantially parallel to and away from the base member (3).   5. Device (1) according to claim 4, characterized in that each parallelogram comprises an opening (12) delimited by two orthogonal cutouts spaced apart from each other on the inner transverse face (10) of the parallelogram, each cutout comprising a first portion (13) extending substantially in the Z direction from the inner edge (14) of the upper face (9) of the parallelogram and a second portion adjacent to the first (13) and inclined towards the base member (3) forming a ramp (15) facing inwardly of the opening (12), the opening (12) being further delimited by a cutout between the two orthogonal cuts along the inner edge (14) of the upper face (9) and the lower edge (16) of the inner transverse face (10), the upper face (9) of the parallelogram and the orthogonal cuts forming respectively the first (6) and the second (7) means of rte that each thin edge of the object (2) can be housed between the upper face (9), the first portions (13) and the ramps (15).   6. Device (1) according to claim 5, characterized in that it further has an opening (17) formed on the upper face (9) of the parallelogram, said opening being delimited by the cut along the inner edge. (14) between the two orthogonal cuts and by a cutout (18) along a line substantially corresponding to the shape of the edge of the object (2) to be positioned and held, said cut being made so that the upper face (9 ) of the parallelogram has at least one lug under which the edge of the object (2) is inserted.   7. Device (1) according to any one of claims 1 to 6, characterized in that it comprises a plurality of adjacent base elements (3), said base elements being articulated to each other so as to be able to to be folded over each other by means of intermediate elements (19) of generally planar shape arranged between two consecutive base elements (3), said intermediate elements being adjacent to the basic elements (3) and articulated thereto along parallel fold lines (20) to the X direction. 8. Device according to claim 7, characterized in that each base member (3) supports a pair of elements (4, 5) for positioning and holding.   9. Device according to claim 7 or 8, characterized in that it comprises a first (3a) and a second (3b) base elements provided with opening / closing means for holding the base elements (3) folded on each other.   10. Device according to any one of claims 1 to 9, characterized in that at least one base member (3c) comprises removable attachment means of a thin article, said fastening means comprising an opening introduction / outlet (23) and a housing (24) for holding the article.   11. Flan (25) of foldable rigid material such as cardboard or polymer for the formation by volume, folding and gluing of a device (1) according to any one of claims 1 to 10, characterized in that it comprises at least one central panel (26) of generally polygonal shape for forming a base element (3) of the device (1) and two lateral assemblies for forming the positioning and holding elements (4, 5), each assembly comprising a first side panel (27) adjoining the central panel (26) and articulated thereto via a first fold line (28) orthogonal to the X direction, a second side panel (29) adjoining to the first (27) and articulated thereto via a second fold line (30) parallel to the first (28), a third side panel (31) adjoining the second (29) and hinged to that by means of a third fold line (32) p arallel to the second (30) and a bracket (11) adjoining the third side panel (31) and hinged thereto via a fourth fold line (33) parallel to the third (32) , the distance between the first (28) and second (30) fold lines being substantially equal to the distance between the third (32) and the fourth (33) fold lines.   12. blank according to claim 11, characterized in that it has an opening (12) formed on each third side panel (31), said opening being delimited by two orthogonal cuts apart from each other and each comprising a first portion (13) extending from the third fold line (32) substantially orthogonally thereto, and a second portion adjoining the first (13) and inclined toward the fourth fold line (33) forming a ramp (15) facing the interior of the opening (12), the opening (12) being delimited by a cutout between the two orthogonal cuts along the third (32) and fourth (33) lines of folding.   13. blank according to claim 12, characterized in that it further has an opening (17) formed on each second side panel (29), said opening being delimited by the cut between the two orthogonal cuts along the third line; bending (32) and a cutout (18) along a line substantially corresponding to the shape of the edge of the object (2) to be positioned and maintained.   14. blank according to any one of claims 11 to 13, characterized in that it comprises a plurality of central panels (26) arranged successively in a direction orthogonal to x, an intermediate panel (34) being disposed between two central panels (26) consecutive, said intermediate panels being adjacent to the central panels (26) and hinged thereto along fold lines (20) parallel to the direction X. 15. blank according to claim 14, characterized in that each central panel (26) comprises two lateral assemblies for forming the elements (4, 5) for positioning and holding.   16. Blank according to claim 14 or 15, characterized in that at least a first central panel (26a) comprises an opening / closing panel (35) hinged to said central panel along a fold line (20) parallel to the direction X, a fastening tab (36) provided with a tongue (21) being adjacent and articulated to the opening / closing panel (35) along a fold line (20) parallel to the direction X, said tongue being intended to be inserted in a slot (22) provided on a second central panel (26b).   17. Blank according to any one of claims 11 to 16, characterized in that at least one central panel (26c) comprises a cons-panel (37) of substantially the same dimensions adjacent said central panel and h articulated thereto along a fold line (20) parallel to the direction X. 18. An assembly formed by the device (1) according to any one of claims 1 to 10 wherein at least one object (2) is positioned and maintained in the space between the elements (4, 5) for positioning and holding .